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authorChristoph Hellwig <hch@lst.de>2018-12-06 12:47:50 -0800
committerChristoph Hellwig <hch@lst.de>2018-12-13 21:06:10 +0100
commit8ddbe5943c0b1259b5ddb6dc1729863433fc256c (patch)
tree7494416660388eedb08aa4658037ed3e0fa49128
parent7249c1a52df9967cd23550f3dc24fb6ca43cdc6a (diff)
downloadlinux-8ddbe5943c0b1259b5ddb6dc1729863433fc256c.tar.bz2
dma-mapping: move dma_cache_sync out of line
This isn't exactly a slow path routine, but it is not super critical either, and moving it out of line will help to keep the include chain clean for the following DMA indirection bypass work. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Jesper Dangaard Brouer <brouer@redhat.com> Tested-by: Jesper Dangaard Brouer <brouer@redhat.com> Tested-by: Tony Luck <tony.luck@intel.com>
-rw-r--r--include/linux/dma-mapping.h12
-rw-r--r--kernel/dma/mapping.c11
2 files changed, 13 insertions, 10 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 0bbce52606c2..0f0078490df4 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -411,16 +411,8 @@ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
#define dma_map_page(d, p, o, s, r) dma_map_page_attrs(d, p, o, s, r, 0)
#define dma_unmap_page(d, a, s, r) dma_unmap_page_attrs(d, a, s, r, 0)
-static inline void
-dma_cache_sync(struct device *dev, void *vaddr, size_t size,
- enum dma_data_direction dir)
-{
- const struct dma_map_ops *ops = get_dma_ops(dev);
-
- BUG_ON(!valid_dma_direction(dir));
- if (ops->cache_sync)
- ops->cache_sync(dev, vaddr, size, dir);
-}
+void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+ enum dma_data_direction dir);
extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c
index 176ae3e08916..0b18cfbdde95 100644
--- a/kernel/dma/mapping.c
+++ b/kernel/dma/mapping.c
@@ -430,3 +430,14 @@ int dma_set_coherent_mask(struct device *dev, u64 mask)
}
EXPORT_SYMBOL(dma_set_coherent_mask);
#endif
+
+void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+ enum dma_data_direction dir)
+{
+ const struct dma_map_ops *ops = get_dma_ops(dev);
+
+ BUG_ON(!valid_dma_direction(dir));
+ if (ops->cache_sync)
+ ops->cache_sync(dev, vaddr, size, dir);
+}
+EXPORT_SYMBOL(dma_cache_sync);